| Kr | Miasto | Nazwa | Typ | Data |
|---|
| UK | London | GPE | A | 1998-01-01 |
| NL | Heerlen | | A | 1998-01-03 |
| PL | Wodzislaw | Silesian Cup (round 1) | D | 1998-01-11 |
| CZ | Praha | Czech Ing Cup | A | 1998-01-16 |
| DE | Essen | German Open | A | 1998-01-17 |
| NL | Amsterdam | Dutch Championship 1998 | A | 1998-01-17 |
| NL | Amsterdam | Dutch Women Championship 1998 | A | 1998-01-17 |
| BE | Leuven | | A | 1998-01-17 |
| DE | Erding | | A | 1998-01-17 |
| FR | var. places | French Championship 1998 (1st round | B | 1998-01-17 |
| CZ | Olomouc | | A | 1998-01-24 |
| NL | Amsterdam | 4th Scheve Ogen tournament | A | 1998-01-24 |
| SK | Spisska Bela | | B | 1998-01-24 |
| UK | Maidenhead | Furze Platt Tournament | B | 1998-01-24 |
| RU | St. Petersburg | City Championship (2nd qualificatio | B | 1998-01-24 |
| PL | Warszawa | 3th Warszawa Cup (round 4) | D | 1998-01-25 |
| DK | Copenhagen | Ambassadors Cup | B | 1998-01-31 |
| FI | Tampere | Rabbitty Six | B | 1998-01-31 |
| FR | var. places | French Championship 1998 (2nd round | A | 1998-01-31 |
| PL | Wodzislaw | Silesian Cup (round 2) | D | 1998-02-01 |
| CZ | Praha | GPE | A | 1998-02-07 |
| IT | Milano | 18th Italian Championship (play-off | A | 1998-02-07 |
| SE | Vaesteraas | | A | 1998-02-07 |
| FR | Antony | | A | 1998-02-07 |
| UK | Oxford | | B | 1998-02-07 |
| RU | Moscow | CIS Baduk LG Cup | A | 1998-02-13 |
| YU | Kragujevac | City Championship - Final | A | 1998-02-14 |
| PL | Warszawa | 4th Warszawa Cup (round 1) | D | 1998-02-15 |
| PL | Bydgoszcz | Bydgoszcz Cup | D | 1998-02-21 |
| ES | Barcelona | GPE | A | 1998-02-21 |
| DE | Bonn | | B | 1998-02-21 |
| DE | Dresden | | A | 1998-02-21 |
| KR | | 2nd LG Baduk World Cup (final) | A | 1998-02-24 |
| FR | Cannes | European Youth Championship 1998 | A | 1998-02-27 |
| FR | Cannes | European Children Championship 1998 | A | 1998-02-27 |
| FR | Cannes | European Ing Cup | A | 1998-02-27 |
| FR | Cannes | European Ing Cup | A | 1998-02-27 |
| DE | Goettingen | 7th San-Ren-Sei Tournament | A | 1998-02-28 |
| NL | Enschede | Dutch Team Championship | A | 1998-02-28 |
| BE | Brussels | Belgian Championship 1998 | A | 1998-02-28 |
| PL | Wodzislaw | Silesian Cup (round 3) | D | 1998-03-01 |
| UK | Cambridge | 22nd Trigantius | B | 1998-03-01 |
| RU | Petrozavodsk | Russian Championship 1998 | A | 1998-03-10 |
| PL | Gdansk | | D | 1998-03-14 |
| IE | Dublin | GPE | A | 1998-03-14 |
| CZ | Zlin | | A | 1998-03-14 |
| DE | Paderborn | 1st Ponnuki Tournament | A | 1998-03-14 |
| YU | Nish | 6th Nish Open | A | 1998-03-14 |
| CH | Zuerich | | A | 1998-03-14 |
| FI | Helsinki | Jaakko Munkki Memorial | B | 1998-03-14 |
| FR | Levallois | | B | 1998-03-14 |
| UK | London | British Candidates | A | 1998-03-14 |
| IT | Varese | | B | 1998-03-15 |
| CZ | Frydek-Mistek | group A | A | 1998-03-21 |
| CZ | Frydek-Mistek | group B | A | 1998-03-21 |
| NL | Nijmegen | Emperor Karels Tournament | A | 1998-03-21 |
| DE | Erlangen | German Women Championship 1998 | A | 1998-03-21 |
| DE | Erlangen | | A | 1998-03-21 |
| RU | St. Petersburg | CIS Baduk LG Cup | A | 1998-03-21 |
| SK | Bratislava | | B | 1998-03-21 |
| PL | Warszawa | 4th Warszawa Cup (round 2) | D | 1998-03-22 |
| RU | St. Petersburg | Russian Women Championship 1998 | A | 1998-03-23 |
| RU | St. Petersburg | Russian Children Championship 1998 | A | 1998-03-23 |
| KR | | 9th Tong Yang Securities Cup (KO to | A | 1998-03-27 |
| AT | Wien | GPE | A | 1998-03-28 |
| HR | Zagreb | 1st Croatian Team Tournament | A | 1998-03-28 |
| ES | Madrid | | B | 1998-03-29 |
| NL | | Dutch Championship 1998 (play-off) | A | 1998-04-02 |
| CZ | Plzen | | A | 1998-04-04 |
| DE | Muenchen | Bierseidel tournament | A | 1998-04-04 |
| SK | Kosice | Spring Tournament | B | 1998-04-04 |
| UK | Bournemouth | | B | 1998-04-04 |
| PL | Wodzislaw | Silesian Cup (round 4) | D | 1998-04-05 |
| NO | Oslo | Nordic Championship 1998 | A | 1998-04-10 |
| UA | Kiev | CIS Baduk LG Cup | A | 1998-04-10 |
| JP | | 11th Fujitsu World Cup | A | 1998-04-11 |
| FR | Paris | GPE | A | 1998-04-11 |
| SI | Bled | GPE | A | 1998-04-17 |
| PL | Gdansk | | D | 1998-04-18 |
| CZ | Brno | | A | 1998-04-18 |
| DE | Freiburg | | A | 1998-04-18 |
| UK | Chester | British Open | A | 1998-04-18 |
| PL | Warszawa | 4th Warszawa Cup (round 3) | D | 1998-04-19 |
| RU | St. Petersburg | City Championship (3rd qualificatio | B | 1998-04-19 |
| IT | Milano | GPE | A | 1998-04-25 |
| CZ | Ostrava | Czech Championship Qualifications | A | 1998-04-25 |
| CZ | Ostrava | V.Valek Memorial Handicap | A | 1998-04-25 |
| YU | Smeredevska Pal | 1st Yugoslav Team Cup | A | 1998-04-25 |
| DE | Hannover | | A | 1998-04-25 |
| FR | Angers | | B | 1998-04-25 |
| SK | Galanta | 7th Slovak Championship | A | 1998-04-30 |
| FR | Grenoble | | B | 1998-05-01 |
| NL | var. places | Dutch District Championships | B | 1998-05-01 |
| CZ | Liberec | | A | 1998-05-02 |
| NL | Tilburg | | A | 1998-05-02 |
| UK | London | Challengers League | A | 1998-05-02 |
| SK | Galanta | Slovak Youth Championship 1998 | B | 1998-05-02 |
| SK | Galanta | Slovak Children Championship 1998 | B | 1998-05-02 |
| SK | Galanta | Slovak Championship (weekend tourna | B | 1998-05-02 |
| DE | Bayreuth | 3rd Tenuki Tournament | A | 1998-05-02 |
| PL | Wodzislaw | Silesian Cup (round 5) | D | 1998-05-03 |
| DK | Copenhagen | Danish Championship 1998 | A | 1998-05-08 |
| PL | Poznan | Poznan Cup | D | 1998-05-09 |
| HU | Budapest | GPE | A | 1998-05-09 |
| DE | Rostock | | A | 1998-05-09 |
| UK | Bracknell | | B | 1998-05-09 |
| NL | Eindhoven | Dutch Youth Championship | C | 1998-05-09 |
| BE | Louvain-la-Neuv | | A | 1998-05-09 |
| IT | Milano | Italian Female Championship | B | 1998-05-10 |
| KR | | 9th Tong Yang Securities Cup (final | A | 1998-05-11 |
| CZ | Nymburk | | A | 1998-05-16 |
| BA | Banja Luka | 4th Republika Srpska Open | A | 1998-05-16 |
| SK | Kojsovska Hola | Kosice Region Open | B | 1998-05-16 |
| FI | Koivukyla | Finnish Women Championship 1998 | A | 1998-05-16 |
| HR | Rijeka | | A | 1998-05-16 |
| FR | Brest | | A | 1998-05-16 |
| SI | Novo Mesto | Slovenian Team Championship | A | 1998-05-16 |
| PL | Warszawa | 4th Warszawa Cup (round 4) | D | 1998-05-17 |
| NL | Amsterdam | GPE | A | 1998-05-21 |
| HU | Szekesfehervar | 1st Albaszoft Cup | B | 1998-05-22 |
| PL | Krakow | | B | 1998-05-23 |
| FI | Jyvaskyla | | B | 1998-05-23 |
| FR | Paris | ENSAE-Acropolis tournament | A | 1998-05-23 |
| UK | Glasgow | Scottish Open | A | 1998-05-23 |
| RU | Kazan | CIS Baduk LG Cup | A | 1998-05-29 |
| DE | Hamburg | GPE | A | 1998-05-30 |
| SE | Uppsala | Swedish Championship 1998 | A | 1998-05-30 |
| FR | Toulouse | | B | 1998-05-30 |
| JP | Tokyo | 20th World Amateur Go Championship | A | 1998-06-02 |
| CZ | Skrdlovice | Czech Team League (part 1) | A | 1998-06-06 |
| HR | Veliki Grdevac | 7th "Lovrakovi Dani" tournament | A | 1998-06-06 |
| DE | Aachen | | C | 1998-06-06 |
| PL | Warszawa | 4th Warszawa Cup (round 5) | D | 1998-06-07 |
| PL | Wodzislaw | Silesian Cup (round 6) | D | 1998-06-07 |
| RU | St. Petersburg | City Championship (4th qualificatio | B | 1998-06-07 |
| PL | Bydgoszcz | Bydgoszcz Cup | D | 1998-06-13 |
| HR | Zagreb | GPE | A | 1998-06-13 |
| AT | Graz | 1st Styrian Masters | A | 1998-06-13 |
| SK | Tornala | | B | 1998-06-13 |
| FR | Tours | | A | 1998-06-13 |
| FR | Montpellier | | B | 1998-06-13 |
| UK | Leicester | | B | 1998-06-13 |
| UK | var. places | British Championship 1998 (play-off | A | 1998-06-14 |
| KR | | 3rd LG Baduk World Cup (KO tourname | A | 1998-06-15 |
| PL | Warszawa | GPE | A | 1998-06-20 |
| DE | Darmstadt | | A | 1998-06-20 |
| DE | Herne | | A | 1998-06-20 |
| CZ | Olomouc | Czech Championship 1998 | A | 1998-06-23 |
| CZ | Olomouc | Czech Championship 1998 (side tourn | A | 1998-06-24 |
| CZ | Olomouc | Czech Championship 1998 (side tourn | A | 1998-06-24 |
| DE | Paderborn | German Championship Preliminaries | A | 1998-06-26 |
| FI | Helsinki | GPE | A | 1998-06-27 |
| CZ | Olomouc | Czech Championship 1998 (weekend to | A | 1998-06-27 |
| DE | Kiel | | A | 1998-06-27 |
| NL | Utrecht | | A | 1998-06-27 |
| FR | Cergy-Pontoise | 6th Vaureal tournament | B | 1998-06-27 |
| UK | Barmouth | Welsh Open | A | 1998-06-27 |
| RU | Petrozavodsk | Russian Cup Circuit | A | 1998-07-01 |
| RU | St. Peterburg | GPE | A | 1998-07-04 |
| CZ | Becov | Czech Women Championship 1998 | A | 1998-07-04 |
| CZ | Becov | Czech Youth Championship 1998 | A | 1998-07-04 |
| AT | Wien | 7th Richard Gump Memorial | A | 1998-07-04 |
| DE | Koeln | | A | 1998-07-04 |
| HR | Zagreb | 2nd Dubrava tournament | A | 1998-07-04 |
| UK | Devon | | B | 1998-07-05 |
| YU | Niska Banja | 20th Yugoslav Championship | A | 1998-07-10 |
| YU | Niska Banja | Yugoslav Women Championship 1998 | A | 1998-07-10 |
| YU | Niska Banja | Yugoslav Youth Championship 1998 | A | 1998-07-10 |
| FI | Tampere | Summer Camp Handicap | C | 1998-07-10 |
| NL | Leiden | | A | 1998-07-11 |
| ES | Madrid | | B | 1998-07-11 |
| PL | Tuchola | Summer Cup | D | 1998-07-26 |
| RO | Mamaia | 42nd European Go Congress (rounds 1 | A | 1998-07-26 |
| RO | Mamaia | 42nd European Go Congress (weekend | A | 1998-08-01 |
| RO | Mamaia | 42nd European Go Congress (rounds 6 | A | 1998-08-03 |
| DE | Hamburg | Baduker Brueckenschlag | B | 1998-08-22 |
| CN | Guiyang | 15th World Youth Goe Championship | A | 1998-08-23 |
| CN | Guiyang | 15th World Youth Goe Championship | A | 1998-08-23 |
| UK | London | 2nd Mind Sports Olympiad (main tour | A | 1998-08-24 |
| CN | Guiyang | WYGC 1998 (knock-out finals) | A | 1998-08-27 |
| FR | Strasbourg | French Championship 1998 (3rd round | A | 1998-08-28 |
| UK | London | 2nd Mind Sports Olympiad (weekend t | A | 1998-08-29 |
| KR | | 3rd Samsung World Cup (KO tournamen | A | 1998-09-01 |
| YU | Kragujevac | 1st Yugoslavian Cup | A | 1998-09-04 |
| NL | Amsterdam | 7th Obayashi Cup (qualification) | B | 1998-09-05 |
| CZ | Plzen | group A | A | 1998-09-05 |
| CZ | Plzen | group B | A | 1998-09-05 |
| PL | Wodzislaw | Silesian Cup (round 7) | D | 1998-09-06 |
| NL | Amsterdam | 7th Obayashi Cup (KO final and grou | B | 1998-09-06 |
| DE | Bremen | German Championship 1998 | A | 1998-09-10 |
| DE | Bremen | German Championship 1998 (side tour | A | 1998-09-12 |
| FI | Turku | Finnish Championship Qualification | A | 1998-09-12 |
| SE | Linghem | Linkoeping Open | A | 1998-09-12 |
| UK | Manchester | Northern Open | A | 1998-09-12 |
| SK | Kosice | 5th Kosice City Championship | B | 1998-09-12 |
| PL | Gdansk | | D | 1998-09-19 |
| DK | Copenhagen | GPE | A | 1998-09-19 |
| CZ | Jesenik | group A | A | 1998-09-19 |
| CZ | Jesenik | group B | A | 1998-09-19 |
| DE | Augsburg | | A | 1998-09-19 |
| SI | Maribor | | A | 1998-09-19 |
| FR | Charleville-Mez | | B | 1998-09-19 |
| UK | Milton Keynes | | B | 1998-09-19 |
| AT | Wien | Mensa Tournament | A | 1998-09-19 |
| AT | Wien | Austrian Open | A | 1998-09-25 |
| CZ | Jesenik | Czech Team League (part 2) | A | 1998-09-26 |
| NL | Eindhoven | Brabants Tournament | A | 1998-09-26 |
| DE | Leipzig | | A | 1998-09-26 |
| FR | Annecy | | B | 1998-09-26 |
| HU | Szekesfehervar | 2nd Albaszoft Cup | B | 1998-09-26 |
| RO | Bucuresti | GPE | A | 1998-10-03 |
| CZ | Mikulov | | A | 1998-10-03 |
| NL | Amsterdam | Indis (Inter-District Tournament) | A | 1998-10-03 |
| SK | Tornala | | B | 1998-10-03 |
| PL | Wodzislaw | Silesian Cup (round 8) | D | 1998-10-04 |
| UK | Shrewsbury | | B | 1998-10-04 |
| SK | Bratislava | GPE | A | 1998-10-10 |
| DE | Bochum | | A | 1998-10-10 |
| FR | Biscarrosse | French Sotetsu Cup (Women Champions | A | 1998-10-10 |
| FR | Biscarrosse | Bordeaux tournament | B | 1998-10-10 |
| ES | San Lorenzo | Spanish Championship 1998 | B | 1998-10-10 |
| AT | Wien | Austrian Championship 1998 | A | 1998-10-10 |
| SI | Fiesa | Slovenian Championship 1998 | A | 1998-10-15 |
| YU | Belgrade | GPE | A | 1998-10-16 |
| FI | Tampere | Finnish Championship 1998 | A | 1998-10-16 |
| PL | Gdansk | | D | 1998-10-17 |
| PL | Krakow | | B | 1998-10-17 |
| PL | Warszawa | Polish Championship Preliminaries | B | 1998-10-21 |
| PL | Warszawa | Polish Championship Qualification | A | 1998-10-24 |
| AT | Krems | | B | 1998-10-24 |
| SK | Galanta | | B | 1998-10-24 |
| UA | Kiev | Ukrainian Championship 1998 | A | 1998-10-24 |
| FR | Lyon | | A | 1998-10-24 |
| FR | Paris | 16th Meijin tournament (category C) | A | 1998-10-24 |
| NO | Blindern | Norwegian Championship 1998 | A | 1998-10-24 |
| RO | Bucuresti | Romanian Championship Qualification | A | 1998-10-24 |
| PL | Warszawa | 5th Warszawa Cup (round 1) | D | 1998-10-25 |
| UK | Wessex | | B | 1998-10-25 |
| BE | Brussels | GPE | A | 1998-10-31 |
| FI | Helsinki&Vantaa | Finnish Championship 1998 (play-off | A | 1998-10-31 |
| FR | Avignon | | A | 1998-10-31 |
| DE | Mannheim | 1st Aji Tournament | A | 1998-10-31 |
| RU | Moscow | City Championship - Final | A | 1998-11-04 |
| PL | Wodzislaw | Polish Go Championship League | A | 1998-11-06 |
| SE | Goeteborg | GPE | A | 1998-11-07 |
| CZ | Ostrava | | A | 1998-11-07 |
| NL | Groningen | Hans de Jong Memorial | A | 1998-11-07 |
| CH | Sursee | Swiss Championship 1998 | A | 1998-11-07 |
| FR | Antony | Graine de Champion | B | 1998-11-07 |
| UK | Ingleton | Three Peaks | A | 1998-11-07 |
| FI | Turku | | C | 1998-11-07 |
| PL | Wodzislaw | Silesian Cup (round 9) | D | 1998-11-08 |
| JP | Yokohama | Sotetsu Cup - WWGAC 1998 | A | 1998-11-08 |
| RO | Bucuresti | Romanian Championship 1998 | A | 1998-11-13 |
| CU | Habana | Cuba Open | A | 1998-11-13 |
| SK | Kosice | Autumn Tournament | B | 1998-11-14 |
| FR | Paris | 16th Meijin tournament (category B) | A | 1998-11-14 |
| RO | Bucuresti | Romanian Open | A | 1998-11-14 |
| PL | Tuchola | | D | 1998-11-15 |
| RO | Baia Mare | Internal Club Tournament (November) | B | 1998-11-18 |
| HU | Budapest | Hungarian Championship 1998 (playof | A | 1998-11-20 |
| FR | Paris | 16th Meijin tournament (category A) | A | 1998-11-21 |
| FR | Toulouse | Autumn Internal Tournament | B | 1998-11-21 |
| NL | Arnhem | | A | 1998-11-21 |
| RO | Slobozia | | A | 1998-11-21 |
| PL | Warszawa | 5th Warszawa Cup (round 2) | D | 1998-11-22 |
| UK | Swindon | | B | 1998-11-22 |
| UA | Kiev | GPE | A | 1998-11-28 |
| CZ | Praha | Czech Championship Qualification To | A | 1998-11-28 |
| DE | Berlin | Berliner Kranich | A | 1998-11-28 |
| HR | Zagreb | 3rd Go Club "Croatia" Open | A | 1998-11-28 |
| FI | Helsinki | Finnish Kisei | A | 1998-11-28 |
| FR | Rouen | | B | 1998-11-28 |
| RO | Sinaia | Serban Cantacuzino Cup | A | 1998-11-28 |
| RO | Baia Mare | Duble KO Tournament | B | 1998-11-28 |
| YU | Kragujevac | 22nd Yugoslav Team Championship | A | 1998-11-28 |
| PL | Poznan | Poznan Cup | D | 1998-11-29 |
| DE | Braunschweig | 16th Nikolaus-Turnier | A | 1998-12-05 |
| IT | Milano | 19th Italian Championship | A | 1998-12-05 |
| HU | Budapest | Hungarian Championship 1998 (playof | A | 1998-12-05 |
| RO | Baia Mare | low kyu tournament | B | 1998-12-05 |
| PL | Wodzislaw | Silesian Cup (round 10) | D | 1998-12-06 |
| RU | St. Petersburg | City Championship (final) | A | 1998-12-09 |
| RO | Baia Mare | Internal Club Tournament (December) | B | 1998-12-09 |
| PL | Bydgoszcz | Bydgoszcz Cup | D | 1998-12-12 |
| PL | Bydgoszcz | Polish Team Championship | D | 1998-12-12 |
| NL | Amsterdam | 6th European Fujitsu Cup | A | 1998-12-12 |
| HR | Velika Gorica | | A | 1998-12-12 |
| BE | Gent | Belgian Championship Qualification | A | 1998-12-12 |
| FR | Clermont-Ferran | French Championship 1998 (play-off) | A | 1998-12-12 |
| FR | Clermont-Ferran | | B | 1998-12-12 |
| FR | Arcueil-Cachan | Long Night of Go | B | 1998-12-12 |
| RO | Braila | Romanian Team Championship | A | 1998-12-12 |
| RO | Braila | Romanian Team Open | A | 1998-12-12 |
| SK | Bratislava | St. Nicolas Tournament | B | 1998-12-12 |
| HR | Zagreb | 23rd Croatian Championship | A | 1998-12-19 |
| NL | Rotterdam | | A | 1998-12-19 |
| RO | Baia Mare | Internal Club Tournament | B | 1998-12-19 |
| PL | Warszawa | 5th Warszawa Cup (round 3) | B | 1998-12-20 |
| CN | | 1st Spring Orchid Cup | A | 1998-12-25 |
| YU | Mladenovac | | A | 1998-12-26 |
| IE | Dublin | Irish Championship | A | 1998-12-31 |
